JP2001130409A - Point device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small and light-weight point device not interfering with the multiple tie-tamper work. SOLUTION: This point device having a fish tail-type locking device for directly locking a tongue rail and a basic rail with a locking member after the switching of the tongue rail, comprises a movable cam operating the locking member and moving a pair of tongue rails, an operation rod connected to the movable cam for operating the same, a pair of locking rods connected to the pair of tongue rails, a driving rod being moved through a ball screw rotated by a motor and a ball screw nut engaged with the ball screw, and a locking mechanism and for locking one of the operation rod and the pair of locking rods by a lock piece coming in and out by the predetermined movement of the driving rod.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching device for converting and locking a switch in a railway, and more particularly, to a device which can be reduced in size and weight and can be easily replaced.

[0002]

2. Description of the Related Art FIG. 8 is a plan view of a switching device frequently used at present, and shows a branching device P including a tongue rail T movably provided with respect to a fixed basic rail R.
And an electric switch 10 for moving the tong rail T
0.

[0003] The electric switch 100 is configured to be installed on two sleepers outside a pair of basic rails R, that is, outside the gauge. This electric point machine 100
Of the internal structure of the "Tetsutetsu device", published on July 20, 1998, the fifth edition of the Japan Railway Electrical Technology Association.
Pp. 38-47, or the 17th edition of "Signal" P.K. 128-140
Although the details thereof are omitted because they are well-known, the electric pointing machine 100 uses an AC motor M as a drive source, and the driving force of the AC motor M uses a clutch, a reduction gear, and a conversion gear with a conversion roller (not shown). It is configured to transmit power in order and move the operation can 101 by its conversion roller.

[0004] That is, the operation can 101 is configured such that a cam (not shown) connected to the operation can 101 is moved by a conversion roller to give a linear motion in a direction perpendicular to the basic rail R. I have. Then, the tongue rail T of the branching device P is changed through the switch adjuster 102 connected to the operation can 101 and the tie bar 103 connected to the tip side of the switch adjuster 102, and the converted tongue rail T It is checked whether or not the tip end position is in a normal position. If the end position is in a normal position, the operation can 101 is locked by a cam bar (not shown) integrated with a lock piece described later. Is configured.

[0005] The above-described checking is performed by the tong rail T of the branching device P.
Is transmitted to the lock can 106 via the front rod 104 and the connection can 105, and the lock piece is inserted into a notch (not shown) provided in the lock can 106. Is configured to be able to determine that the position of the tip of the branching device P is normal if the can be inserted into the notch.

When it is determined that the distal end position of the branching device P is normal, the operation can 101 is locked by the cam bar, and the lock can 106 is also locked by the lock piece.
The branching device P is in a double locked state, that is, a so-called indirect double locked state.

[0007]

However, in the above-mentioned conventional switch device, since the electric switch machine main body is installed on two sleepers outside the gauge, the tie bar, the switch adjuster and the front are provided between the sleepers. There were rods, which hindered the ballasting automatically, which was an obstacle during so-called multi-tie work.

The main body of the electric switch has a single metal lump which cannot be divided.
It weighs 50 kg, requires a lot of manpower for installation work, is dangerous because it handles large objects, and such work is usually performed at night after passing the train, and it is severe. There was a drawback to work.

Further, when the maintenance of the electric switch is performed, the cover of the main body of the electric switch is removed, but since the cover is made of cast iron, the mass is large and it is difficult to handle. For this reason, there was a drawback in that the storage location after removal was inconvenient.

Accordingly, the present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a small and light-weight, easy-to-handle, and point-to-point switching device which does not hinder multi-tie work. To provide.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, a switching device according to the present invention directly locks a tongue rail and a basic rail using a lock after conversion of the tongue rail. A fish-tail type switching device, comprising: an operating rod for operating the lock and moving a pair of tong rails; a pair of lock rods connected to the pair of tong rails; and a motor. A ball screw rotated by the ball screw, a driving can moved through a ball screw nut screwed into the ball screw, and a lock piece which comes in and out by a predetermined movement of the driving can, the operating can and the pair of chains. And a lock mechanism for locking one of the lock cans.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is a plan view of a switching device according to an embodiment, and FIG. 1B is a front view thereof.
This corresponds to a sectional view taken along line AA of FIG.

The switching device 1 is configured to be provided in a housing 2 having an external shape of a conventional sleeper. Therefore, the housing 2 is provided in the ballast B, and the basic rails R, R and the tong rails T, T are mounted on the upper surface of the housing 1 (see FIG. 1B). .

The switching device 1 is composed of a driving section a using a motor as a driving source, which will be described later, and a direct locking section b, which directly locks the tongue rail T to the basic rail R with a locking pin described below. ing. Among these, the drive part a is provided outside the gauge in the housing 2, and the conversion lock part b is provided in the gauge in the housing 2. As described above, the switching device 1 is configured as a so-called fish tail type in which the tong rail T and the basic rail R are directly locked.

The drive section a and the direct locking section b will be described below with reference to FIG. 2 with the cover a 'of the drive section a removed. First, a description will be given of the driving unit a. In the case a ', a motor M as a driving source is provided. The driving source of the motor M is a clutch 3, a gear 4a,
The ball screw 5 provided in the direction orthogonal to the longitudinal direction of the basic rails R, 4R via the base rails 4b and 4c can be driven to rotate. In FIG. 2, reference numeral 6 denotes a manual turning shaft for a manual turning handle provided on the intermediate gear 4b.

The ball screw nut 7 is screwed to the ball screw 5. The ball screw 5 moves (drives) an operation rod 8 for converting the tong rails T, T, and a pair of locks. Drive can 10 having cam surfaces 10a, 10b for moving pieces 9a, 9b in and out
Is provided. The operating can 8 has a notch 8a into which the driving can 10 is fitted with a predetermined play, and a lock piece 9
A notch 8b into which the protrusion of a is screwed, and a notch 8c into which the protrusion of the lock piece 9b is fitted are provided.

A first chain lock 11 and a second chain lock 12
Are provided parallel to the operation can 8 and at a predetermined interval, and are connected to the tong rails T,
T. And the first chain lock 1
1 has a notch 11a into which the lock piece 9b is fitted, and the second lock can 12 has a notch 12a into which the lock piece 9a is fitted.

A movable cam 15 is connected to the operation can 8 via a connection can 8a. And the movable cam 1
The five cam portions 15a, 15b are provided corresponding to the tong rails T, T, respectively. The locks 16a, 16b are respectively moved, and the tong rails T, T can be moved (converted) via the locks 16a, 16b.

The so-called fish-tail type shifting / locking operation using the movable cam 15 and the locks 16a and 16b is the same as a well-known fish-tail type switching device. Although not shown, as shown in FIG. 2, when the operation cam 15 is moving to the right, the right tongue rail T is bonded to the right basic rail R and locked in the bonded state. It is in. That is, the lock 16b is lifted by the cam portion 15b of the movable cam 15, and is locked with the right tongue rail T adhered to the basic rail R. Further, the lock 16a is in an unlocked state in which the left tongue rail T is separated from the basic rail R by being fitted to the movable cam 15 (see FIG. 2A).
The state of the tong rails T, T shown in FIG. 2 will be described below as a localized state.

The operation of switching from the localization to the inverted state will be described below with reference to FIGS.

Release of the lock piece 9a (see FIG. 3) When the tongue rail T starts to change from the normal state (the state shown in FIG. 2) to the reverse state, the ball screw 5 is driven by the rotation of the motor M. The operation of moving the can 10 in the direction of the arrow is started.

When the drive can 10 is moved, the lock piece 9a is pushed downward by the cam surface 10a against the spring 9a ', and the projection of the lock piece 9a is disengaged from the notch 8b of the operation can 8 so as to operate. The can 8 is unlocked.

Release of the direct lock (lock 16b) (FIG. 4)
The movement of the driving can 10 proceeds further, and the notch 8
When the play of a disappears, the driving can 10 starts moving the operating can 8. When the operation can 8 moves, the movable cam 15 moves in accordance with the movement, and as shown in FIG. 4B, the movable cam 15 is rotated about the support shaft 16b 'of the lock 16b so that Release the lock of the tong rail T.

In the middle of conversion (see FIG. 5) After the locking of the lock 16b is started and the movement of the operation can 8 is continued by the driving can 10, the tongue rail T on the left side becomes the lock 16a. Is the cam portion 15b of the movable cam 15.
The tongue rail T on the right side is displaced by the movement of the lock 16b (see FIG. 2A) by the movement of the lock 16b (see FIG. 2A). Moved to the side.

The locking of the direct locking portion (the locking pin 16a) is started (see FIG. 6). The movement of the driving can 10 further proceeds, and the tongue rail T on the left side is moved to the basic rail R
And at the same time, the cam portion 15a of the movable cam 15 moves below the lock 16a.
The lock 16a starts moving upward around the support shaft 16a ', and the lock of the lock 16a is started (see FIG. 6A).

End of conversion (see FIG. 7) When the movement of the drive can 10 proceeds further, the lock 16a
As shown on the right side of the lock 16b in FIG.
, The tongue rail T and the basic rail R
Are locked. Further, when the operation can 8 moves, the lock piece 9b is fitted into the notch 8c provided in the operation can 8 by the spring 9b 'to lock the operation can 8, and the lock piece 9b is The first lock can 11 is locked by fitting into the notch 11a provided in the first lock can 11. In addition,
The lock piece 9b is located on a cam surface 10b provided on the drive can 10.

The transition from the inverted state to the localized state shown in FIG. 7 is performed in a manner reverse to that described above.

The entirety of the switching device 1 having the above-described configuration is in a state where it is housed in one sleeper, so that it does not hinder the multi-tie operation. In addition, since it is small and lightweight, it is convenient for transportation and the like, and can be extremely excellent in workability.

[0029]

The switch device according to the present invention is a fish-tail type switch device for directly locking the tongue rail and the basic rail using a lock after conversion of the tongue rail. Operating the lock and moving the pair of tong rails, a pair of lock cans connected to the pair of tong rails, a ball screw rotated by a motor, and the ball screw. A drive can that is moved via a ball screw nut to be screwed in,
A lock mechanism that locks one of the operation can and the pair of lock cans by a lock piece that comes in and out by a predetermined movement of the drive can is reduced in size and weight, convenient for transportation and the like, Extremely excellent workability can be obtained.

[Brief description of the drawings]

FIG. 1A is a plan view of a switching device according to an embodiment, and FIG. 1B is a front view of the device, and FIG.
It corresponds to a line sectional view.

FIG. 2 is an explanatory view showing a stereotactically locked state.

FIG. 3 is an explanatory view showing a released state of a lock piece.

FIG. 4 is an explanatory view showing a released state of a direct lock portion.

FIG. 5 is an explanatory diagram showing an intermediate position of the change.

FIG. 6 is an explanatory diagram showing a state in which the direct locking portion starts locking.

FIG. 7 is an explanatory diagram showing a state in which conversion is completed.

FIG. 8 is a plan view of a conventional point device.

[Explanation of symbols]

 Reference Signs List a Drive section b Direct locking section T Tong rail R Basic rail 1 Pointing device 2 Housing 5 Ball screw 7 Ball screw nut 8 Operation can 9a, 9b Lock piece 10 Drive can 11 First lock can 12 Second chain Lock can 15 Movable cam 16a, 16b Lock

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 7, 1999 (1999.12.
7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

[0009] Furthermore , some of the old electric points are electric.
There is a rolling thing iron machine cover of the body is made of cast iron, if you perform maintenance of the electric tact iron machine, is carried out to remove the electric rolling iron machine body of the cover, the cover is, from cast iron Because of its large mass, it is difficult to handle, and because it is large,
There was a drawback that the place after removal was inconvenient.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, a switching device according to the present invention directly locks a tongue rail and a basic rail using a lock after conversion of the tongue rail. a point lock device with a fish tail type locking device, causes operate the Kusarijoko, a movable cam Before moving the pair of tongs rails, the movable mosquito
Operation to move the movable cam connected to the
A pair of locking cans connected before Symbol pair of tongs rails, a drive cans to be moved through a ball screw nut screwed ball screw, and the ball screw is rotated by a motor, the drive cans And a lock mechanism for locking one of the operation can and the pair of lock cans by a lock piece that comes in and out by the predetermined movement.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

The switching device 1 is composed of a driving section a using a motor as a driving source, which will be described later, and a direct locking section b, which directly locks the tongue rail T to the basic rail R with a locking pin described below. ing. Among these, the drive part a is provided outside the gauge in the housing 2, and the direct locking part b is provided in the gauge in the housing 2. As described above, this switching device 1 locks the tongue rail T and the basic rail R outside the drive unit a.
It has been configured in a way that.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

The ball screw nut 7 is screwed to the ball screw 5. The ball screw 5 moves (drives) an operation rod 8 for converting the tong rails T, T, and a pair of locks. Drive can 10 having cam surfaces 10a, 10b for moving pieces 9a, 9b in and out
Is provided. The operating can 8 has a notch 8a into which the driving can 10 is fitted with a predetermined play, and a lock piece 9
and the notch 8b which a projection is fitted, is provided and the notch 8c of projection of the locking piece 9b is fitted.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

[0019] Using the movable cams 15 and Kusarijoko 16a, 16b, the conversion and the locking operation of the so-called fish-tail type, are the same as locking equipment known fish tail type, detailed description Although not shown, as shown in FIG. 2, when the movable cam 15 is moving to the right, the right tongue rail T is adhered to the right basic rail R and locked in the adhered state. It is in. That is, the lock 1
Reference numeral 6b denotes a state in which the right tongue rail T is lifted up by the cam portion 15b of the movable cam 15 and is locked while being adhered to the basic rail R. In addition, the lock 16a is a movable cam 1
5 and is in an unlocked state in which the left tongue rail T is separated from the basic rail R (see FIG. 2A). The state of the tong rails T, T shown in FIG.
Hereinafter, description will be given as a localization state.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction contents]

[0021] (see FIG. 3) unlocking pieces 9a ◎ When switching from the constant position of the state (the state in FIG. 2) to the opposite position of the state is initiated, the ball screw 5 is driven cans 10 by the rotation of the motor M Is started in the direction of the arrow.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

[0024] After the conversion of the intermediate (see FIG. 5) ◎ Kusarijoko 16b of locking is started, the movement of the operation cans 8 is continued by the drive cans 10, tongue rails T on the right side, locking The child 16a is the cam portion 15b of the movable cam 15.
By (FIG. 2 (b) see) moves, also the tongue rail T on the left side, the anti-by Kusarijoko 16b is a cam portion 15a of the movable cam 15 (which see FIG. 2 (a)) moves It is moved to the place side.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0029

[Correction method] Change

[Correction contents]

[0029]

The switch device according to the present invention is a fish-tail type locking device for directly locking the tongue rail and the basic rail using a lock after the tongue rail is converted.
A point lock device with, together to operate the Kusarijoko, a movable cam Before moving the pair of tongs rails,
A motion that is connected to the movable cam and operates the movable cam.
And work cans, before SL and a pair of locking cans which are connected to a pair of tongs rails, ball screw that is rotated by a motor, and a drive cans to be moved through a ball screw nut screwed to the ball screw A lock mechanism that locks one of the operation can and one of the pair of lock cans by a lock piece that enters and exits by a predetermined movement of the drive can. And extremely excellent workability. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 8, 1999 (1999.12.
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction contents]

When the lock piece 9a is released (see FIG. 3), the ball screw 5 rotates the drive can 10 by the rotation of the motor M when the change from the normal state (the state of FIG. 2) to the inverted state is started. The operation of moving in the direction is started.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

In the middle of the change (see FIG. 5) After the locking of the lock 16b is started, the movement of the operation can 8 by the driving can 10 is continued, and the tongue rail T on the right side moves to the lock 16a. Is the cam portion 15b of the movable cam 15.
The tongue rail T on the left side is displaced by the movement of the lock 16b (see FIG. 2 (a)) of the movable cam 15 (see FIG. 2 (a)). Moved to the side.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masuo Ito 1-13-8 Kamikizaki, Urawa-shi, Saitama Japan Signaling Co., Ltd. Yono Works (72) Inventor Yoshio Maruyama 1-1-13 Kamikizaki, Urawa-shi, Saitama No. 8 Nippon Signal Co., Ltd. Yono Works (72) Inventor Hosuke Uetake 1-13-8 Kamikizaki, Urawa-shi, Saitama Japan Signal Co., Ltd. Yono Works (72) Inventor Tadashi Isayama 1 1-13-8 Japan Signal Corporation Yono Office (72) Inventor Takehiko Kawasaki 1-13-8 Kamikizaki Urawa-shi, Saitama Japan Signal Corporation Yono Office (72) Inventor Kazuo Hirai Upper Urawa-shi, Saitama 1-13-8 Kizaki Nippon Signal Co., Ltd. Yono Works F-term (reference) 2D056 AB03 5H161 SS04

Claims (1)

[Claims] 1. A fish-tail type switching device for directly locking a tongue rail and a basic rail using a lock after conversion of the tongue rail, wherein the lock is operated. An operation can for moving the pair of tong rails, a pair of locking cans connected to the pair of tong rails, a ball screw rotated by a motor, and a ball screw nut screwed to the ball screw. A driving can to be moved, and a lock mechanism for locking one of the operation can and the pair of locking cans by a lock piece that comes in and out by a predetermined movement of the driving can. Pointing device.